Incidents

Fiesta parties on

Over the last couple of weeks, we’ve been seeing new modifications of the PDF exploits spread and managed by the El Fiesta toolkit. Among other things, this nasty package targets unpatched Adobe and browser vulnerabilities to download more malicious code onto the victim machine.

A ‘nice’ feature – for the bad guys, that is – is that Fiesta can be used not just to launch attacks, but to monitor them online. The screenshot below shows data on attacks which have been launched on machines around the world.

El Fiesta got a fair bit of publicity back in September this year. The fact that we’re seeing new variants shows there are still a good number of machines with unpatched software out there that malware writers want to get their hands on.

Fiesta parties on

Your email address will not be published. Required fields are marked *

 

Reports

Lazarus targets defense industry with ThreatNeedle

In mid-2020, we realized that Lazarus was launching attacks on the defense industry using the ThreatNeedle cluster, an advanced malware cluster of Manuscrypt (a.k.a. NukeSped). While investigating this activity, we were able to observe the complete life cycle of an attack, uncovering more technical details and links to the group’s other campaigns.

Sunburst backdoor – code overlaps with Kazuar

While looking at the Sunburst backdoor, we discovered several features that overlap with a previously identified backdoor known as Kazuar. Our observations shows that Kazuar was used together with Turla tools during multiple breaches in past years.

Lazarus covets COVID-19-related intelligence

As the COVID-19 crisis grinds on, some threat actors are trying to speed up vaccine development by any means available. We have found evidence that the Lazarus group is going after intelligence that could help these efforts by attacking entities related to COVID-19 research.

Sunburst: connecting the dots in the DNS requests

We matched private and public DNS data for the SUNBURST-malware root C2 domain with the CNAME records, to identify who was targeted for further exploitation. In total, we analyzed 1722 DNS records, leading to 1026 unique target name parts and 964 unique UIDs.

Subscribe to our weekly e-mails

The hottest research right in your inbox